John Resig
John Resig is a JavaScript Tool Developer for the Mozilla Corporation and the author of the book Pro JavaScript Techniques. He's also the creator and lead developer of the jQuery JavaScript library.
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How jQuery Makes Hard Things Simple
jQuery does a lot to make some really complicated JavaScript and DOM scripting simple. In this talk you'll learn some advanced jQuery techniques for simplifying your code. Additionally we'll look at some of the recent changes in jQuery and see how to apply them to your application.